Abstract
Purpose
To identify the potential biometric associations in patients with early-onset primary angle closure disease (EOPACD), and the relevant biometric cut-offs for distinguishing them.
Design
A prospective cross-sectional observational study.
Participants
The study included 190 eyes with EOPACD of 128 patients, aged 20–40 years (mean age 34.2 ± 6.0 years).
Methods
EOPACD (defined as primary angle closure presenting before 40 years of age) was classified into early-onset primary angle closure suspect (EOPACS), early-onset primary angle closure (EOPAC), and early-onset primary angle closure glaucoma (EOPACG) groups. The participants underwent a baseline clinical examination, including gonioscopy, ultrasound biomicroscopy, anterior segment ocular coherent tomography (ASOCT) and optical biometry (IOL Master). Statistical analysis was performed to identify risk factors associated with EOPACG such as axial length (AL), lens thickness (LT), lens vault (LV), anterior chamber depth (ACD), anterior chamber area (ACA) and other parameters on ASOCT.
Main outcome measures
To identify ocular biometric associations and potential cut-offs for distinguishing glaucoma eyes from suspects.
Results
Biometric measurements showed that the AL was the shortest, while ACD, ACA and ASOCT angle parameters were narrowest in eyes with EOPACG, as compared to EOPACS and EOPAC (p < 0.001; Bonferroni/Dunn test). Similarly, LV and LT were highest in eyes with EOPACG (p < 0.001). Logistic regression analysis revealed that ACD exhibited the highest predictive ability (ACD ≤ 2.73 mm, OR 4.36, AUC 0.72), followed by LT (LT ≥ 4.22 mm, OR 4.2, AUC 0.71) and ACA (ACA ≤ 17.24mm2, OR 3.04, AUC 0.7) for EOPACG.
Conclusions
This study highlights the significance of ocular biometric measurements, especially ACD and LT, which can assist in stratifying individuals with EOPACD for early detection of glaucoma. Thickening of the lens with the resultant crowded anterior chamber seemed to be the most prevalent biometric characteristic in eyes with frank glaucoma.
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Data availability
All the dataset generated in this study is available with the corresponding author (SG) on request.
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SG, SY, VG had substantial contribution to the conception and design of the study. SG, SY, AP, SS, TV, AKP, SoS, and RS had substantial contribution to the acquisition and collection of data. SG, SY and AP contributed to the analysis and interpretation of data. SG, SY, and AP contributed to the drafting of the manuscript.
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Gupta, S., Yadav, S.K., Panigrahi, A. et al. Risk factor stratification in early-onset primary angle closure disease. Eye 39, 2604–2611 (2025). https://doi.org/10.1038/s41433-025-03884-1
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DOI: https://doi.org/10.1038/s41433-025-03884-1


